Bug report

Clearing the value with the Signature "clear" button does not trigger the widget's change event.

Reproduction of the problem

Run the following Dojo example: https://dojo.telerik.com/KhlVWvam

1. Draw something in the Signature
2. Click on the "clear" button

Expected

The change event fires.

Actual

The change event does not fire.

Environment

**Kendo UI version: 2025.1.211
**Browser: [all]

Bug report

When the kendo js references are rendered as module, the licensing banner and watermark appear, even when a valid license license key has been installed.

Reproduction of the problem

<link href="https://kendo.cdn.telerik.com/themes/10.2.0/default/default-ocean-blue.css" rel="stylesheet" type="text/css" />
    
<script src="https://code.jquery.com/jquery-3.7.1.min.js" type="module"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/pdf.js/4.8.69/pdf.mjs" type="module"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/pdf.js/4.8.69/pdf.worker.mjs" type="module"></script>
<script src="https://cdn.kendostatic.com/2025.1.211/js/kendo.all.min.js" type="module"></script>
<script src="https://cdn.kendostatic.com/2025.1.211/js/kendo.aspnetmvc.min.js" type="module"></script>

Expected

No banner and watermark appears.

Actual

A banner and a watermark appears.

Workaround: reference a js file containing your script key after the kendo js files:

<script src="~/Scripts/telerik-license.js" type="module"></script>

Environment

**Kendo UI version: 2025.1.211
**Browser: [all]

Bug report

When the Kendo UI Grid is configured to have endless scrolling and an item is updated on the first page, the scrollbar is reset. If an update is done on a page after the first one, the scroll is correctly persisted.

Reproduction of the problem

1. Set a grid with an endless scroll.

2. Scroll down (without entering the second page).

3. Update an item on the first page.

4. The scroll is reset.

Dojo sample for reference:

https://dojo.telerik.com/EcUKIrAK

Environment

* **Kendo UI version:** 2021.1.330
* **jQuery version:** 1.12.4
* **Browser:** [all]

Currently, the tool name is not added into the HTML structure of the created Editor's tool:

Here is a Dojo example:

https://dojo.telerik.com/AvoNOKOr

Is it possible to include the specified "name" in the button's class, so the custom tools can be selected by class name for further customization?

Bug Report

The SaveButton() method does not render the Cancel Command button in Grid's Toolbar Template

Reproduction of the issue

1. Declare the Grid's Toolbar.Template() API configuration with an Action or Delegate
2. Notice, that Grid's Toolbar does not explicitly add the Cancel Command button.

@(Html.Kendo().Grid<GridModel>()
    ...
   .Name("grid")
   .ToolBar(t =>
      {
          t.Template(@<text>
            <span class="group-buttons">
	         @item.SaveButton();
            </span>
          </text>);
  })
)

Current behaviour

The SaveButton() method does not render the Cancel Command in Grid's Toolbar Template.

Expected behavior

The SaveButton() method should render the Cancel Command in Grid's Toolbar Template.

Workaround

A possible way to circumvent this behavior would be to explicitly declare both the Save and Cancel buttons as independent Button components via the Toolbar.ClientTemplate() API configuration.

@(Html.Kendo().Grid<GridModel>()
	...
	.Name("grid")
        .ToolBar(t =>
	{
		t.ClientTemplate(Html.Kendo().Template()
				.AddHtml(@<text>
					<span class="group-buttons">
				</text>)
				.AddComponent(saveBtn => saveBtn
					.Button()
					.Name("saveBtn")
					.Icon("check")
					.HtmlAttributes(new { @class = "k-grid-save-changes", style="margin-right: 2%;" })
					.Content("Save Changes")
				)
				.AddComponent(cancelBtn => cancelBtn
					.Button()
					.Icon("cancel")
					.Name("cancelBtn")
					.HtmlAttributes(new { @class = "k-grid-cancel-changes" })
					.Content("Cancel Changes")
				)
				.AddHtml("</span>")
		);
	})
)

Bug report

Inline Editor removes Toolbar items when it is set as resizable.

Reproduction of the problem

1. Open the following dojo.
2. Set the resizable configuration to true.
3. Hide and show the Editor's Toolbar numerous times.

Current behavior

The Inline Editor's Toolbar items are removed each time the ToolBar window is re-rendered.

Expected/desired behavior

The Inline Editor's Toolbar items should not be removed each time the ToolBar window is re-rendered.

Environment

• Kendo UI version: 2024.2.514
• Browser: [all]

Describe the bug
The k-toolbar-solid class is not rendered in the Grid's toolbar. As a result, the theme background color is not applied to the toolbar.

To reproduce
Steps to reproduce the behavior:

1. Go to 'Overview demo'
2. Inspect the toolbar

Expected behavior
The k-toolbar-solid class should be applied to the toolbar's div element, as in the Kendo UI for jQuery Grid and the Core Grid.

The workaround is to add the class with jQuery, for example in the DataBound event of the Grid:

<script>
    function onGridDataBound(e) {
        $(e.sender.wrapper).find(".k-toolbar").addClass("k-toolbar-solid");
    }
</script>

Affected browsers (please remove the unneeded items)

• All

Product Version
2024.4.1112

Bug report

Reproduction of the problem

Dojo: https://dojo.telerik.com/iMuMedOd

1. Focus a cell and use one of the following shortcuts: Ctrl + B (Bold), Ctrl + I (Italic)

Current behavior

A js exception is thrown:
Uncaught TypeError: Cannot read property 'click' of undefined
kendo.all.js:168073

Expected/desired behavior

With the toolbar disabled the shortcuts should do nothing. There should be no exceptions.

Environment

• Kendo UI version: 2021.2.616
• jQuery version: x.y
• Browser: [all ]

Bug report

There is a difference in behavior between the wrappers (MVC and Core) and the Kendo UI for jQuery DateRangePicker. See the following dojo example, which shows initializing the component with a null value for the End date: https://dojo.telerik.com/IkAMUJoG/2

In contrast, the MVC and Core helpers display the Start value as End value.

Reproduction of the problem

1. Run this REPL: https://netcorerepl.telerik.com/GoaDYoFu45uqxdEF31

Current behavior

The End value is the same as the Start value.

Expected/desired behavior

The End value is null.

Consider also the scenario, where the Range configuration is not set and the component gets the Start and End values from the model, and the value of the EndDate field is null:

@(Html.Kendo().DateRangePickerFor(m => m.StartDate, m => m.EndDate )
    .Name("dateRangePicker")
)

Environment

• Kendo UI version: 2024.3.806
• jQuery version: x.y
• Browser: [all]

Bug report

The TabStrip Item Action() method is not loading content correctly.

Reproduction of the problem

1. The configuration of the TabStrip, including the Action method:
   @(Html.Kendo().TabStrip() .Name("tabs") .Items(strip => { strip.Add().Text("Back").Action("About", "Home"); // ...
2. Click on the tab.

Current behavior

For kendo.version '2024.3.806', when the tab is clicked, the controller method does not load from the Action().

Expected/desired behavior

For previous versions, like '2023.2.718', when the tab is clicked, the URL from the action method is loaded into the browser URL.

Environment

• Telerik UI for ASP.NET version: 2024.3.806
• Browser: [all ]

Bug report

The Scheduler is not rendered correctly when the Custom Toolbar is declared with a Template component

Reproduction of the problem

Open the following demo and notice that the Scheduler has not been rendered accordingly.

Current behavior

The Scheduler is not rendered accordingly.

Expected/desired behavior

The Scheduler should be rendered accordingly.

The issue is a regression starting with 2024.3.1015

Environment

• Kendo UI version: 2024.3.1015
• Browser: [all ]

Bug report

Reproduction of the problem

Dojo example: https://dojo.telerik.com/oDOcanIk

1. Drag tile A and drop it after tile B

Current behavior

The checked radio button of the RadioGroup appears unchecked.

Expected/desired behavior

The RadioGroup check state remains the same.

Environment

• Kendo UI version: 2022.2.802
• jQuery version: x.y
• Browser: [all]

Bug report

Reproduction of the problem

1. Initialize a PDFViewer and add a button that calls a controller action on click.

<div id="pdfViewer">
</div>

<script type="text/javascript">
    $("#pdfViewer").kendoPDFViewer({
        pdfjsProcessing: {
            file: ""
        }
    });

    function loadFile() {
        $("#pdfViewer").data("kendoPDFViewer").fromFile("@Url.Action("GetPDF", "Home")");
    }
</script>

2. Implement an action that returns a .pdf file or occasionally returns HttpNotFoundResult:

public ActionResult GetPDF()
{

    var name = "sample.pdf";
    string path = Server.MapPath("/Content/pdf/sample.pdf");

    //generate a random boolean:
    Random rng = new Random();
    bool randomBool = rng.Next(0, 2) > 0;
            
    if (randomBool)
    {
        byte[] fileBytes = System.IO.File.ReadAllBytes(path);
        return File(fileBytes, System.Net.Mime.MediaTypeNames.Application.Octet, name);
    }
    else
    {
        return new HttpNotFoundResult("File not found.");
    }
}

Current behavior

In the case where the request returns HttpNotFoundResult, a number of js errors are thrown:

util.js:417 Uncaught (in promise)

The user loses the ability to load a file, because subsequent attempts to load a file by clicking the button result in another js exception:

api.js:1114 Uncaught TypeError: Cannot read properties of null (reading 'sendWithStream')

Expected/desired behavior

The component should show a message that a file is not found, without throwing js exceptions and should not become unusable after a failed attempt to load a file.

Environment

• Kendo UI version: 2024.1.319
• jQuery version: x.y
• Browser: [all]

Bug report

The attributes handler overload does not get executed when the column is initially marked as hidden.

Reproduction of the problem

1. Open the following dojo.
2. Change the hidden property of the ContactTitle field to true.

Current behavior

The attributes handler is not executed when the column is hidden.

Expected/desired behavior

The attributes handler should be executed when the column is hidden.

Environment

• Kendo UI version: 2023.1.425
• Browser: [all]

Bug report

Using the PDFViewer with the latest version of PDF.js (3.9.179) throws js exceptions. Version 3.4.120 is the last one, with which no js exception is thrown.

Reproduction of the problem

Dojo example: https://dojo.telerik.com/IHedIhur/3

1. Open the devtools consolve and run the example.

Current behavior

The file is loaded, however, js exceptions are thrown:

The --scale-factor CSS-variable must be set, to the same value as viewport.scale, either on the container-element itself or higher up in the DOM. text_layer.js:480:14

Expected/desired behavior

No js exceptions when using PDF.js versions newer than v3.4.120.

Environment

• Kendo UI version: 2023.2.718
• jQuery version: x.y
• Browser: [all]

Bug report

There are multiple differences in the theme files. In the theme file added by the NuGet browser-specific styles are missing and calc values differ. Likely the issue is due to autoprefixer and postcss-calc being used in the kendo-themes repo: https://github.com/telerik/kendo-themes/blob/develop/postcss.config.js
and not being used in theme compilation logic in the kendo repo:
https://github.com/telerik/kendo/blob/production/gulpfile.js#L55C38-L55C39
https://github.com/telerik/kendo/blob/master/build/gulp/sass.js

Reproduction of the problem

1. In an ASP.NET MVC app install the Telerik.UI.for.AspNet.Mvc NuGet package.
2. The NuGet package adds the kendo theme files to the MyApp\Content\kendo\2024.2.514
3. Open the classic-silver.css file added by the NuGet package and compare it to the file hosted on the CDN: https://kendo.cdn.telerik.com/themes/8.0.1/classic/classic-silver.css

Current behavior

There are multiple differences similar to the exemplary ones posted below:

Example 1:
CDN line 33994:

.k-menu-vertical > .k-menu-item > .k-menu-link > .k-menu-expand-arrow {
    margin-inline-start: var(--kendo-spacing-2, 0.5rem);
    margin-inline-end: calc(var(--kendo-spacing-2, 0.5rem)*2*-1 + -16px - var(--kendo-spacing-2, 0.5rem)/2*-1);
}

NuGet:

.k-menu-vertical > .k-menu-item > .k-menu-link > .k-menu-expand-arrow {
    margin-inline-start: var(--kendo-spacing-2, 0.5rem);
    margin-inline-end: calc( -1 * (calc( var(--kendo-spacing-2, 0.5rem) * 2 + 16px) - var(--kendo-spacing-2, 0.5rem)/2));
}

Note the difference in the margin-inline-end value.

Example 2:
CDN line 36510:

.k-progressbar-vertical .k-progress-status {
    -ms-writing-mode: tb-lr;
        writing-mode: vertical-lr;
}

NuGet:

.k-progressbar-vertical .k-progress-status {
    writing-mode: vertical-lr;
}

Expected/desired behavior

The theme files distributed through CDN and NuGet should be identical.

Environment

• Kendo UI version: 2024.2.514
• jQuery version: x.y
• Browser: [all ]

Bug report

Reproduction of the problem

1. Run this dojo example: https://dojo.telerik.com/eVOVEdaR
2. Click the bold, italic, and underline tools to activate all 3 of them
3. Click away from the inline Editor

Alternatively to step 2, click the first justify tool and then consecutively click the other 3 justify buttons.

Current behavior

The Editor's toolbar does not close.

Expected/desired behavior

The Editor toolbar closes

Environment

• Kendo UI version: 2024.2.514
• jQuery version: x.y
• Browser: [Chrome XX]

Bug report

Bundling the Kendo js files in an ASP.NET MVC application throws a NullReferenceException error. Reproduced with versions 2024.1.319 and 2024.2.514. The bundling works without exceptions in version 2023.3.1114.

Reproduction of the problem

1. Add the following bundle to the BundleConfig.cs file:

bundles.Add(new ScriptBundle("~/bundles/kendo").Include(
        "~/Scripts/kendo/2024.2.514/kendo.web.min.js",
        "~/Scripts/kendo/2024.2.514/kendo.aspnetmvc.min.js"
));

Instead of kendo.web.min.js you can use kendo.all.min.js with the same result.

2. Render the scripts in the _Layout.cshtml's head element after jQuery by calling:

@Scripts.Render("~/bundles/kendo")

Current behavior

Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.

Workaround:

Use bundles.Add(new Bundle("~/bundles/kendo") instead of bundles.Add(new ScriptBundle("~/bundles/kendo")

Expected/desired behavior

No exception is thrown when bundling the Kendo script files.

Environment

• Kendo UI version: 2024.2.514
• jQuery version: x.y
• Browser: [all ]

Bug report

Reproduction of the problem

1. Run this dojo example: https://dojo.telerik.com/oVAViPiD
2. Focus the Editor's content area
3. Click the background color or the color tool's dropdown arrow. Make sure to click precisely the arrow icon.

Current behavior

The dropdown opens and the Editor hides.

Expected/desired behavior

The dropdown opens and the Editor remains open.

Environment

• Kendo UI version: 2024.3.806
• jQuery version: x.y
• Browser: [all]

### Bug report

When the Grid is set up for InCell editing, and the column editor is the Upload widget, the user cannot select a file to upload when the Grid is navigatable.

The issue occurs in version >= 2024.1.130

### Reproduction of the problem

1. Create an InCell editable Grid and enable its "navigatable" option.

2. Set the Upload widget as a column editor.

3. Enter a specified cell in edit mode and try to select a file for upload.

4. The cell closes immediately.

A Dojo sample for reproduction: https://dojo.telerik.com/oDaNaLiQ

### Expected/desired behavior

The cell must remain focused when the Upload button is clicked.

### Workaround

Handle the "edit" event of the Grid, handle the "mousedown" event of the Upload button, and call stopImmediatePropagation():

            $("#grid").kendoGrid({
                editable: true,
              	navigatable: true,
                edit: function(e) {
                   if($(e.container).find("input[type='file']")) {
                   	$(".k-upload-button").on("mousedown", function (event) {
                          event.stopImmediatePropagation();
            		});
                   }
                }
                ...
            });

### Environment

* **Kendo UI version: 2024.1.130
* **jQuery version: 3.7.0
* **Browser: [all]